Highly uniform and low turn-on voltage Si field emitter arrays fabricated using chemical mechanical polishing

被引:29
作者
Ding, M
Kim, H
Akinwande, AI
机构
[1] MIT, Microsyst Technol Labs, Cambridge, MA 02139 USA
[2] Inst Adv Engn, Kyonggi Do, South Korea
关键词
chemical mechanical polishing; field emission; Fowler-Nordheim theory; low temperature oxidation;
D O I
10.1109/55.821669
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Turn-on voltage of about 30 V is observed in 1-mu m gate-aperture Si field emitter arrays fabricated using oxidation sharpening and chemical mechanical polishing. Small emitter tip radius (similar to 10 nm) was achieved from low temperature oxidation sharpening. The gate leakage current is observed to be less than 0.01% of emitter current over the range of measurement. Devices show excellent emission uniformity for different sized arrays. Current saturation was observed at high gate voltages because of low dopant concentration of the substrate. Below the saturation region, the current-voltage characteristics obey the Fowler-Nordheim field emission theory.
引用
收藏
页码:66 / 69
页数:4
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